[Haichuan Overseas Engineering] Practical Training on Wall-Climbing Anti-Corrosion Robots for the Lobito Refining Project in Angola

The Gorralobito refinery project is one of the key benchmark projects in the company’s overseas construction business. The project involves the construction of multiple large-scale storage tanks. The sandblasting and painting operations on their inner and outer walls to achieve corrosion protection are crucial steps for ensuring the long-term safe operation of these equipment. These tasks present challenges such as large working areas, many tasks that require working at heights, high construction standards, and strict environmental regulations. Traditional manual work methods suffer from issues including low efficiency, high labor intensity, high costs associated with safety scaffolding as well as long setup times, in addition to significant safety risks. To overcome the challenges associated with construction, the project team actively implements the philosophy of \"using technology to enhance construction and driving development through innovation.\" It introduces advanced wall-climbing anti-corrosion robot technology and forms a specialized technical team to conduct systematic research and training on robot-based construction methods. This set of robots employs fully enclosed recycling technology, using negative pressure to achieve 100% recovery of the sandblasting materials, thereby completely resolving environmental issues such as dust generation during sandblasting on site. At the demonstration site, the technicians followed the construction specifications strictly, precisely controlling the robot to move along the tank’s wall surface in a flexible manner, thereby completing the entire process smoothly ； The operation status of the robot, the intensity of sandblasting, the uniformity of painting, and other key parameters are monitored in real time throughout the process. Through repeated adjustments and process optimization, the essential skills for operating the robot as well as the techniques for precise parameter control have been mastered, ensuring that the roughness, cleanliness, and soluble salt content resulting from sandblasting for rust removal meet the project’s design standards and relevant quality requirements.

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